Home / 65,342.39-90,158.58-38,475.08

Finding the Fourth Proportional to 65,342.39, 90,158.58 and 38,475.08

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Solution

The fourth proportional to 65,342.39, 90,158.58 and 38,475.08 is: 53,087.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,342.39 : 90,158.58 = 38,475.08 : x
  2. Step 2: Convert to fraction form
    65,342.39/90,158.58 = 38,475.08/x
  3. Step 3: Cross multiply
    65,342.39x = 90,158.58 × 38,475.08
  4. Step 4: Simplify right side
    65,342.39x = 3,468,858,578.19
  5. Step 5: Solve for x
    x = 3,468,858,578.19/65,342.39
  6. Step 6: Final answer
    x = 53,087.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.